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numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context node can be modified but never restored. This is related to xsltNumberFormatGetValue, xsltEvalXPathPredicate, xsltEvalXPathStringNs, and xsltComputeSortResultInternal.
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18 Feb 2026 22:42Current
7High risk
Vulners AI Score7
CVSS 3.17.8
EPSS0.00087
SSVC